PIC16C781-I/SS Microchip Technology, PIC16C781-I/SS Datasheet - Page 24
![IC MCU OTP 1KX14 W/AD COMP20SSOP](/photos/6/58/65895/150-20-ssop_sml.jpg)
PIC16C781-I/SS
Manufacturer Part Number
PIC16C781-I/SS
Description
IC MCU OTP 1KX14 W/AD COMP20SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Datasheets
1.PIC16C781-ISO.pdf
(186 pages)
2.PIC16C781-ISO.pdf
(8 pages)
3.PIC16C781-ISO.pdf
(8 pages)
Specifications of PIC16C781-I/SS
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
13
Program Memory Size
1.75KB (1K x 14)
Program Memory Type
OTP
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x8b; D/A 1x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SSOP
For Use With
XLT20SS1-1 - SOCKET TRANSITION 20DIP 20SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Connectivity
-
Other names
PIC16C781I/SS
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PIC16C781/782
2.8
The Power Control (PCON) register contains two flag
bits to allow determination of the source of the most
recent RESET:
• Power-on Reset (POR)
• External MCLR Reset
• Power Supply Brown-out (BOR) Reset
The Power Control register also contains frequency
select bits for the INTRC oscillator and the WDT soft-
ware enable bit.
REGISTER 2-6:
DS41171A-page 22
Note:
PCON Register
bit 7-5
bit 4
bit 3
bit 2
bit 1
bit 0
BOR is unknown on Power-on Reset. It
must then be set by the user and checked
on subsequent RESETS to see if BOR is
clear, indicating a brown-out has occurred.
The BOR status bit is a don't care and is
not necessarily predictable if the brown-out
circuit is disabled (by clearing the BODEN
bit in the Configuration word).
Unimplemented: Read as '0'
WDTON: WDT Software Enable bit
If WDTE bit (Configuration Word <3>) = 1:
This bit is not writable, always reads ‘1’
If WDTE bit (Configuration Word <3>) = 0:
1 = WDT is enabled
0 = WDT is disabled
OSCF: Oscillator Speed INTRC Mode bit
1 = 4 MHz typical
0 = 37 kHz typical
All other oscillator modes (X = Ignored)
Unimplemented: Read as '0'
POR: Power-on Reset Status bit
1 = No Power-on Reset occurred
0 = A Power-on Reset occurred (must be set in software after a Power-on Reset occurs)
BOR: Brown-out Reset Status bit
1 = No Brown-out Reset occurred
0 = A Brown-out Reset occurred
POWER CONTROL REGISTER (PCON: 8Eh)
bit 7
Legend:
q = Value depends on conditions
R = Readable bit
- n = Value at POR
U-0
—
U-0
—
Preliminary
W = Writable bit
’1’ = Bit is set
U-0
—
WDTON
R/W-q
4 MHz
37 kHz 4 MHz
Direction of Change
Note:
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
37 kHz
R/W-1
OSCF
When changing the internal oscillator
speed (i.e., the OSCF bit, INTRC mode),
the processor will be inactive during the
oscillator frequency change.
U-0
—
2001 Microchip Technology Inc.
Minimum
Typical Time Inactive
1.25 s
100 s
x = Bit is unknown
R/W-q
POR
Maximum
3.25 s
300 s
R/W-q
BOR
bit 0
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